Load something from Internet using URLConnection and ReadableByteChannel, in Thread

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Last example show "Load something from Internet using URLConnection and BufferedReader, in Thread". Here is another example using java.nio.channels.ReadableByteChannel.

Read operations are synchronous on a ReadableByteChannel, that is, if a read is already in progress on the channel then subsequent reads will block until the first read completes. It is undefined whether non-read operations will block.

MainActivity.java

package com.blogspot.android_er.androidinternet;

import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;
import android.widget.Toast;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;

public class MainActivity extends AppCompatActivity {

    TextView textResult;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textResult = (TextView)findViewById(R.id.tresult);

        MyThread myThread = new MyThread("http://android-er.blogspot.com", textResult);
        myThread.start();
    }

    class MyThread extends Thread{
        String target;
        TextView textviewResult;

        private Handler handler = new Handler();

        public MyThread(String target, TextView textviewResult) {
            super();
            this.target = target;
            this.textviewResult = textviewResult;
        }

        @Override
        public void run() {
            String result = "";

            URL url = null;
            try {
                url = new URL(target);
                URLConnection urlConnection = url.openConnection();
                InputStream inputStream = urlConnection.getInputStream();

                ReadableByteChannel readableByteChannel = Channels.newChannel(inputStream);
                ByteBuffer buffer = ByteBuffer.allocate(1024);

                while (readableByteChannel.read(buffer) > 0)
                {
                    result += new String(buffer.array());
                    buffer.clear();
                }

            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

            final String finalResult = result;
            handler.post(new Runnable() {
                @Override
                public void run() {
                    textviewResult.setText(finalResult);
                    Toast.makeText(MainActivity.this,
                            "finished", Toast.LENGTH_LONG).show();
                }
            });
        }
    }
}

For layout and AndroidManifest.xml, refer to the previous post "Load something from Internet using URLConnection and BufferedReader, in AsyncTask".

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